It's country dependant (and study dependant) : https://www.lemonde.fr/societe/article/2020/01/23/un-rapport...

Most studies does not account for what people dislike in immigration : fracturing social contract and communities shattering. Frictions in the salad bowl are poorly translated to economic figures but folks live it everyday.

So look carefully at what each study says and its perimeter.

One should curb down its sureness of that matter.